Finding the Fourth Proportional to 76,365.54, 114,504.84 and 31,374.09
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Solution
The fourth proportional to 76,365.54, 114,504.84 and 31,374.09 is: 47,043.28
Step by Step Solution
- Step 1: Write the proportion equation
76,365.54 : 114,504.84 = 31,374.09 : x - Step 2: Convert to fraction form
76,365.54/114,504.84 = 31,374.09/x - Step 3: Cross multiply
76,365.54x = 114,504.84 × 31,374.09 - Step 4: Simplify right side
76,365.54x = 3,592,485,155.60 - Step 5: Solve for x
x = 3,592,485,155.60/76,365.54 - Step 6: Final answer
x = 47,043.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.